Ore-concentrator



(No Model.) s sheetssheet 1. E. W. STEPHENS. URB GONGBNTRATOR.

Patented Aug. 25, 1885.

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(No Model.) I 3 Sheets-Sheet 2. E. W. STEPHENS.

ORE GONUENTRATOR.

No. 325,129. Patented Aug. 25, 1885.

N. PETERS, Phonnimogmphar. Waahmgmn, D, a

4N@ Model.) 3 sheets-sheet 3. E. W. STEPHENS.

ORE GONGBNTRATOR.

No. 325,129. Y Patented Aug. 25, 1885.

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EDV/IARD IV. STEPHENS, OF ERIE, PENNSYLVANIA.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 325,129, dated August25, 1885u (No model.)

To all whom, it may concern:

Be it known that I, EDWARD W. SrnrHnNs, a citizen ofthe United States,residing at Erie, in the county of Erie and State of Pennsylva nia, haveinvented certain new and useful Improvements in 0re-Goncentrators; and Ido hereby declare the following to be a full, clear, and exactdescription ofthe invention, such as will enable others skilled in theart to which it appertains to make and use the same.

rIhis invention relates to that class of oreconcentrators in which. theore-bed is moved; and it consists in certain improvements in means foractuating the ore-bed, as will be hereinafter fully described, andpointed out in the claims.

My device is illustrated in the accompanying drawings, as follows:Figure 1 is a side elevation. Fig. 2 is a top or plan view, with partsbroken away to show other parts. Fig. 3 is a vertical section at one endof themachine on the line .r .e in Fig. 4. Fig. 4 is an end elevationwith parts broken away.

r1`he machine is rectangular in form, and the one which I haveconstructed is ten feet long and six feet wide. The stationary framevwork consists of a base-frame, I, ot' square timber, and iron uprightbrackets I I at each end. A main shaft, t3, is adjusted in the middie ofthe frame and extends from end to end. It is run from a drivingshai'tand gears 1 1 1 and 2, or it may be run from a belt where mounteddirectly upon it. At each end of the frame, mounted on the brackets II', are upright shafts 6 6, which are run freni the shaft 3 by gears 4and 5. On the top of these upright shafts are crank-heads '7 7, withadjustable crank-pins 8 S, which are adjusted by the screws 9 9. (SeeFigs. and 4.) The crank-pins pass transversely through trunnion'bars 1016, which are mounted in boxes H H on cross-beams of a frame, G. IThisfra-me is supported on these trunnions and on universally-jointedtoggles J J J J at each corner ot' said frame. These toggles areprovided with round ends, which are inserted in cups j, attached to theframe Gr` and arcshapcd blocks J. In Figs. 3 and 4 this arrangement isclearly shown. However, in Fig. 4, the boxes H H are broken away, butare clearly seen in Fig. 3 and also in Fig. 1.

It will be seen that as the shafts 6 6 are revolved the frame G is givena horizontal rotary or orbital movement, the radius of the circle ofrotation being adjusted by the adjustment of the cranlepins S in theheads 7. It will also be seen that as this rotation takes place thetoggles J will lift the frame up first on one side and then on theother, thus rocking it on its trunnions 10. gree of this rocking is alsoadjustable by adjusting the feet of the toggles on the arcshaped blocksJ, which are attached to the base I. The throw of these toggles is shownby dotted lines in Figs. 4 and 1.

A second frame, F, is mounted on the frame G on rollers L L in bracketsK at the four corners. This frame F is so held that it receives all themovements given to the frame G, and it may also be moved longitudinallyon its rollers L L independently ofthe frame G. Such a longitudinalmovement is given to this frame by the following appliances: Onthe'shaft 3 is an eccentric, 19, which is connected by a connecting-rod,1S, with an arm, 1h, said connection being made by a universal joint,17, said arm 16 being collared upon a shaft, 1l, on which is a disk, 13,having a catch, 14, and on the arm 16 is a pawl, 15, which engages withthe catch 14. At the ends of shaft 11 are disks 12 with catch-pins j,which engage with catch-pins f on the sides of the frame F. \Vhen thearm 16 is pulled down by the eccentric 19, the shalt 11 is rocked, andthis, by reason of the eatehesff, draws the frame F forward 5 but whenthe arm 16 has been depressed certain distance the pawl 15 comes incontact with the stop-pin 21, (see Figs. 1 and 3,) and is thrown off thecatch 14.

The part 2O consists of a bar hinged to the body of stop 21, and extendsthrough the pawl 15. Interposed between the hinge and pawl is a coiledspring, which is compressed when the frame is drawn forward, and forcesthe pawl into the position shown in Fig. 1 when the latter is released.\Vhen this occurs, a reacting spring, F2, which is adjusted to resistthe separation of the buffers F G, suddenly drives the frame F backgiving it a sudden jerk. rIhe buffers F and G are preferably angle-ironsattached, respectively, to frames The de-n IOO F and G. To buil'ers Gris attached a rod having a set-screw at its distal end, and a coiledspring, F2, interposed between the setscrew and the buffer F, so thatwhen the frame F is drawn back the spring will be compressed and willforce the buffers together when the pawl has been released from catch14:. This whole movement need not be more than a quarter of an inch.

A rubber plate, g, may be put between the buffers F G to prevent noise,if desired.

It will now be seen that the frame F has imparted to it a horizontalrotary and a vertical oscillatory and a sudden intermittent longitudinalmovement. On this frame I mount the ore-bed, and thus to it is impartedall the forenamed movements, as well as a continuous longitudinal orfeeding movement. The manner of so mounting the ore-bed is as follows:At each end of the frame are brackets B2, which are provided with anadjustable part, B3, which is mounted on guides Bon the part B2. Thesaid parts B3 carry the journalboxes of the drums B, on which theendless ore-bed B is adj usted. The brackets B2,at one end of the frame,are mounted so as to be movable on plates B5, and made adjustable byscrews B, so as to properly adjust the drums to the length of thebelt-like bed B. The screws B6 are inserted in screw-threaded lugs lf onplates B5, and work in sockets bT in the frame B2. lf it be desired toadjust the frame B2 toward the front of the machine, the screw nearestthe front is partly unscrewed, and the screw at the other side of theframe screwed in until the desired adjustment is made. On each side ofthe upper part of the bed are rails B7, in which are journaled rollers bb b, &c., which prevent the bed B from sagging between the drums. Thebed may be set perectly level, but I prefer to give it a slight inelinetoward the tail. The bed is made to move slowly toward the head--thatis, up the incline. This movement is effected by a slow rotation of oneof the drums by clutching device 28 and 27, (as shown it is a frictionor binding clutch, but it maybe a toothed ratchet, if desired,) which isoperated bythe rod 26, crank 25, rock-shaft 22, rock-arm 24, andeccentric 28. The crank 25 is made adjustable, so as to regulate thedegree of movenient. is the feeding-hopper; C, the water supply; D d d,water-jets for clearing the concentrations or headings from the bed. Eis the headings-receiver.

The bed B may be made of india-rubber or of metal, and it may be in onepiece.

rlhe surface of the bed is divided into a series of pan-like spaces, B8,by curved rifies. The bottom of these rifles may be iat,as shown in Fig.2, or depressed, as shown in Fig. 3. rI he riftles catch and retainthe'matter being acted v upon, and also serve as dams to the water; and,

being curved,the water and sand are held as in a pan, and the rotarymotion given to the bed agitates the water and sand substantially thesame as a miner agitates them in a handpan. The light particles of sandescape with the water over the top of the riifies and pass toward thetail end of the machine, while the ore is retained in the pans, and isthus carried toward the head ofthe machine. The bed is made with sidepieces or flanges, to prevent the matter being acted or operated uponfrom escaping at the sides.

The jerking or jarring movementis for the purpose of moving pebbles orcoarse pieces of rock which are not weighted with ore, and which are tooheavy to be washed over the rifiies by the action of the water towardthe tail end of the machine; and hence,when such matter does not existin the auriferous matter being operated upon, the said jarring movementis not necessary. From the foregoing description the operation can besufficiently understood without further description.

Vhat I claim as new is* 1. In a wet-ore concentrator, the combination ofan ore-bed having a series of curved rirlies forming a series ofpan-like spaces, a frame supporting said ore-bed, and mechanism foractuating said ore-bed in a horizontal orbit, substantially asdescribed.

2. In a wet-ore concentrator, the combination of an endless-belt ore-bedhaving a series of curved rii'lles forming a series ot' pan-like spaces,drums on which said ore-bed ismounted, a frame supporting said orebedand drums,and actuating mechanism,substantially as described.

3. In a wet-ore conceutrator, the combination, substantially asdescribed, of the following elements: au ore-bed having a series of IOOrifiies forming a series of pan-like spaces, a

frame supporting said ore-bed, gearing, substantially as described, formoving said frame in a horizontal orbit, a base-frame, anduniversal-jointed toggles for giving said frame a tipping movement as itis rotated, substantially as sh-own.

4. In a wet-ore concentrator, the combination, substantially asdescribed, of the following elements: an ore-bed, frame-work forsupporting said ore-bed, consisting of two frames, one of whichsupport-s the ore-bed and rests upon the other, and is movablev thereonlongitudinally, gearing, substantially as described, for moving bothsaid frames in an orbit, and other gearing, substantially as described,for reciprocating the upper frame upon the lower while both are beingrotated, as set forth.

5. Ina wet-ore coneentrator, the combination, with the ore-bed B,mounted and moved as a conveyer, substantially as described, oftheframes G and F, the upright shafts-6 6, crankpins 8, toggles JJ,trunnions 10 l0,and crankheads 7 7 for supporting and moving saidframes, in the manner and for the purposes set forth.

6. In a wet-ore concentrato'r substantially as described, thecombination, with the orebed B and the frames F and G, of the uprightshafts 6 and 6, adjustable Vcranks 7 S and 7 8,

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the trunnions 10 and 10, and the toggles J J rod 18, and eccentric 19,as described, and J J, substantially asand forthe purposes menfor thepurposes mentioned. tioned. 9. The combination, with the bed B and 15 7.The combination, substantially as herein drum B, of the clutch device 272S, rod 2G, 5 described, with the ore-bed B, ofthe framesF crank 25,shaft 22, arm 24, and eccentric23, as and G, cranks7 8, trunnions 10,toggles J, and described, and for the purposes mentioned. the arc-shapedfoot-plates J', for the purposes In testimony whereof I afiixinysignaturein mentioned. presence of two Witnesses.

8. The combinatiomwith the ore-bed Band EDVARD XV. STEPHENS. Io theframes F and G, of the buffers F G', spring Titnesses:

F1, the shaft 11, disks 12 12 and 13, catches SELDEN MARVIN, f f, ff,and 14, paw] l5, arm 16, connecting- ROBT. H. PORTER.

